Whitespace-related characters

[Karl Sanders via Unicode]

Hi all,

I was looking at this page:
https://en.wikipedia.org/wiki/Whitespace_character
specifically at the 'Related whitespace characters without Unicode
character property "WSpace=Y"' table.

I was wondering:

1) Is there an official source for this table in the standard? I think
not and hence the following two questions.

2) Are there any characters that you think are missing from the table
or maybe there are some that don't belong there?

3) I wouldn't put the U+2800 and U+2063 code points into such a table.
Would you?

Regards,
Karl